06 January 2014
Conservatories and porches must meet Local Government requirements
Areas will be deemed exempt subject to meeting all of the following conditions; Glazing complying with Parts K4, K5.1, K5.2, and K5.3, and K5.4 of Schedule 1. The thermal separation between building and conservatory or porch is maintained. The heating system of the building is not extended into the conservatory or porch.